. >> reporter: marvin brown is a professor of business ethics and author of a book called "corporate integrity." he says changing the culture goes beyond putting an executive on paid leave. >> what these events tell us is the kind of world that's being created by the people managing the port of oakland. report as for lawrence duncan -- mr. duncan that is eric rasmussen. we tried to reach him directly for his explanation. we're still waiting for a response. >> we are outraged. the media has exposed what we've known all along. >> what we uncovered set off a series of protest of oakland workers. workers were furious. our report put the report top officials and its board on defensive and launch a series of external and internal investigations. the port commission placed director on administrative leave. as our investigation continued, we discovered it was more than oakland port officials visiting that same private room karaoke bar. some oakland police made repeated visits to that same place. here again eric rasmussen raising question about what police officers are dynamic on the clock. >